*
* When a url contains "cgi-bin" it is assumed to be a cgi script. The
* server changes directory to the location of the script and executes it
- * after setting QUERY_STRING and other environment variables. If url args
- * are included in the url or as a post, the args are placed into decoded
- * environment variables. e.g. /cgi-bin/setup?foo=Hello%20World will set
- * the $CGI_foo environment variable to "Hello World" while
- * CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV enabled.
+ * after setting QUERY_STRING and other environment variables.
*
* The server can also be invoked as a url arg decoder and html text encoder
* as follows:
- * foo=`httpd -d $foo` # decode "Hello%20World" as "Hello World"
- * bar=`httpd -e "<Hello World>"` # encode as "%3CHello%20World%3E"
+ * foo=`httpd -d $foo` # decode "Hello%20World" as "Hello World"
+ * bar=`httpd -e "<Hello World>"` # encode as "<Hello World>"
+ * Note that url encoding for arguments is not the same as html encoding for
+ * presentation. -d decodes a url-encoded argument while -e encodes in html
+ * for page display.
*
* httpd.conf has the following format:
+ *
+ * A:172.20. # Allow address from 172.20.0.0/16
+ * A:10.0.0.0/25 # Allow any address from 10.0.0.0-10.0.0.127
+ * A:10.0.0.0/255.255.255.128 # Allow any address that previous set
+ * A:127.0.0.1 # Allow local loopback connections
+ * D:* # Deny from other IP connections
+ * /cgi-bin:foo:bar # Require user foo, pwd bar on urls starting with /cgi-bin/
+ * /adm:admin:setup # Require user admin, pwd setup on urls starting with /adm/
+ * /adm:toor:PaSsWd # or user toor, pwd PaSsWd on urls starting with /adm/
+ * .au:audio/basic # additional mime type for audio.au files
+ *
+ * A/D may be as a/d or allow/deny - first char case insensitive
+ * Deny IP rules take precedence over allow rules.
+ *
+ *
+ * The Deny/Allow IP logic:
+ *
+ * - Default is to allow all. No addresses are denied unless
+ * denied with a D: rule.
+ * - Order of Deny/Allow rules is significant
+ * - Deny rules take precedence over allow rules.
+ * - If a deny all rule (D:*) is used it acts as a catch-all for unmatched
+ * addresses.
+ * - Specification of Allow all (A:*) is a no-op
+ *
+ * Example:
+ * 1. Allow only specified addresses
+ * A:172.20 # Allow any address that begins with 172.20.
+ * A:10.10. # Allow any address that begins with 10.10.
+ * A:127.0.0.1 # Allow local loopback connections
+ * D:* # Deny from other IP connections
+ *
+ * 2. Only deny specified addresses
+ * D:1.2.3. # deny from 1.2.3.0 - 1.2.3.255
+ * D:2.3.4. # deny from 2.3.4.0 - 2.3.4.255
+ * A:* # (optional line added for clarity)
+ *
+ * If a sub directory contains a config file it is parsed and merged with
+ * any existing settings as if it was appended to the original configuration.
+ *
+ * subdir paths are relative to the containing subdir and thus cannot
+ * affect the parent rules.
+ *
+ * Note that since the sub dir is parsed in the forked thread servicing the
+ * subdir http request, any merge is discarded when the process exits. As a
+ * result, the subdir settings only have a lifetime of a single request.
+ *
+ *
+ * If -c is not set, an attempt will be made to open the default
+ * root configuration file. If -c is set and the file is not found, the
+ * server exits with an error.
+ *
+*/
-A:172.20. # Allow any address that begins with 172.20
-A:10.10. # Allow any address that begins with 10.10.
-A:10.10 # Allow any address that previous set and 10.100-109.X.X
-A:127.0.0.1 # Allow local loopback connections
-D:* # Deny from other IP connections
-/cgi-bin:foo:bar # Require user foo, pwd bar on urls starting with /cgi-bin/
-/adm:admin:setup # Require user admin, pwd setup on urls starting with /adm/
-/adm:toor:PaSsWd # or user toor, pwd PaSsWd on urls starting with /adm/
-.au:audio/basic # additional mime type for audio.au files
-
-A shortes path and D:from[^*] automaticaly sorting to top.
-All longest path can`t reset user:password if shorted protect setted.
-
-A/D may be as a/d or allow/deny - first char case unsensitive parsed only.
-
-Each subdir can have config file.
-For protect as user:pass current subdir and subpathes set from subdir config:
-/:user:pass
-if not, other subpathes for give effect must have path from httpd root
-/current_subdir_path_from_httpd_root/subpath:user:pass
-
-The Deny/Allow IP logic:
-
- 1. Allow all:
-The config don`t set D: lines
-
- 2. Allow from setted only:
-see the begin format example
-
- 3. Set deny, allow from other:
-D:1.2.3. # deny from 1.2.3.0 - 1.2.3.255
-D:2.3.4. # deny from 2.3.4.0 - 2.3.4.255
-A:* # allow from other, this line not strongly require
-
- A global and subdirs config merging logic:
-allow rules reducing, deny lines strongled.
- The algorithm combinations:
-
- 4. If current config have
-A:from
-D:*
- subdir config A: lines skiping, D:from - moving top
-
- 5. If current config have
-D:from
-A:*
- result config:
-D:from current
-D:from subdir
-A:from subdir
- and seting D:* if subdir config have this
-
- If -c don`t setted, used httpd root config, else httpd root config skiped.
- Exited with fault if can`t open start config.
- For set wide open server, use -c /dev/null ;=)
- */
#include <stdio.h>
#include <ctype.h> /* for isspace */
#include "busybox.h"
-static const char httpdVersion[] = "busybox httpd/1.20 31-Jan-2003";
-static const char default_patch_httpd_conf[] = "/etc";
+static const char httpdVersion[] = "busybox httpd/1.34 2-Oct-2003";
+static const char default_path_httpd_conf[] = "/etc";
static const char httpd_conf[] = "httpd.conf";
-static const char home[] = "/www";
+static const char home[] = "./";
+
+#ifdef CONFIG_LFS
+# define cont_l_fmt "%lld"
+#else
+# define cont_l_fmt "%ld"
+#endif
-// Note: xfuncs are not used because we want the server to keep running
+// Note: busybox xfuncs are not used because we want the server to keep running
// if something bad happens due to a malformed user request.
// As a result, all memory allocation after daemonize
// is checked rigorously
//#define DEBUG 1
-/* Configure options, disabled by default as nonstandart httpd feature */
-//#define CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
-//#define CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
-//#define CONFIG_FEATURE_HTTPD_DECODE_URL_STR
+/* Configure options, disabled by default as custom httpd feature */
-/* disabled as not necessary feature */
+/* disabled as optional features */
+//#define CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
//#define CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
//#define CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
//#define CONFIG_FEATURE_HTTPD_SETUID
//#define CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
-/* If seted this you can use this server from internet superserver only */
+/* If set, use this server from internet superserver only */
//#define CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
/* You can use this server as standalone, require libbb.a for linking */
/* Config options, disable this for do very small module */
//#define CONFIG_FEATURE_HTTPD_CGI
//#define CONFIG_FEATURE_HTTPD_BASIC_AUTH
+//#define CONFIG_FEATURE_HTTPD_AUTH_MD5
#ifdef HTTPD_STANDALONE
/* standalone, enable all features */
#undef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
/* unset config option for remove warning as redefined */
#undef CONFIG_FEATURE_HTTPD_BASIC_AUTH
-#undef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
+#undef CONFIG_FEATURE_HTTPD_AUTH_MD5
#undef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
-#undef CONFIG_FEATURE_HTTPD_DECODE_URL_STR
#undef CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
#undef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
#undef CONFIG_FEATURE_HTTPD_CGI
#undef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
/* enable all features now */
#define CONFIG_FEATURE_HTTPD_BASIC_AUTH
-#define CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
+#define CONFIG_FEATURE_HTTPD_AUTH_MD5
#define CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
-#define CONFIG_FEATURE_HTTPD_DECODE_URL_STR
#define CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
#define CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
#define CONFIG_FEATURE_HTTPD_CGI
void bb_show_usage(void)
{
fprintf(stderr, "Usage: %s [-p <port>] [-c configFile] [-d/-e <string>] "
- "[-r realm] [-u user]\n", bb_applet_name);
+ "[-r realm] [-u user] [-h homedir]\n", bb_applet_name);
exit(1);
}
#endif
#undef DEBUG
#endif
-/* CGI environ size */
-#ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
-#define ENVSIZE 50 /* set max 35 CGI_variable */
-#else
-#define ENVSIZE 15 /* minimal requires */
-#endif
-
-#define MAX_POST_SIZE (64*1024) /* 64k. Its Small? May be ;) */
-
#define MAX_MEMORY_BUFF 8192 /* IO buffer */
typedef struct HT_ACCESS {
char before_colon[1]; /* really bigger, must last */
} Htaccess;
+typedef struct HT_ACCESS_IP {
+ unsigned int ip;
+ unsigned int mask;
+ int allow_deny;
+ struct HT_ACCESS_IP *next;
+} Htaccess_IP;
+
typedef struct
{
-#ifdef CONFIG_FEATURE_HTTPD_CGI
- char *envp[ENVSIZE+1];
- int envCount;
-#endif
char buf[MAX_MEMORY_BUFF];
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
const char *realm;
+ char *remoteuser;
#endif
+
+#ifdef CONFIG_FEATURE_HTTPD_CGI
+ char *referer;
+#endif
+
const char *configFile;
- char rmt_ip[16]; /* for set env REMOTE_ADDR */
+ unsigned int rmt_ip;
+#if defined(CONFIG_FEATURE_HTTPD_CGI) || defined(DEBUG)
+ char rmt_ip_str[16]; /* for set env REMOTE_ADDR */
+#endif
unsigned port; /* server initial port and for
set env REMOTE_PORT */
const char *found_mime_type;
off_t ContentLength; /* -1 - unknown */
time_t last_mod;
+
+ Htaccess_IP *ip_a_d; /* config allow/deny lines */
+ int flg_deny_all;
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ Htaccess *auth; /* config user:password lines */
+#endif
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ Htaccess *mime_a; /* config mime types */
+#endif
+
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
int accepted_socket;
#define a_c_r config->accepted_socket
#define a_c_r 0
#define a_c_w 1
#endif
- Htaccess *Httpd_conf_parsed;
} HttpdConfig;
static HttpdConfig *config;
static const char request_GET[] = "GET"; /* size algorithic optimize */
static const char* const suffixTable [] = {
-/* Warning: shorted equalent suffix in one line must be first */
+/* Warning: shorted equivalent suffix in one line must be first */
".htm.html", "text/html",
".jpg.jpeg", "image/jpeg",
".gif", "image/gif",
{ HTTP_OK, "OK" },
{ HTTP_NOT_IMPLEMENTED, "Not Implemented",
"The requested method is not recognized by this server." },
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
{ HTTP_UNAUTHORIZED, "Unauthorized", "" },
+#endif
{ HTTP_NOT_FOUND, "Not Found",
"The requested URL was not found on this server." },
- { HTTP_BAD_REQUEST, "Bad Request" ,
- "Unsupported method." },
+ { HTTP_BAD_REQUEST, "Bad Request", "Unsupported method." },
{ HTTP_FORBIDDEN, "Forbidden", "" },
- { HTTP_INTERNAL_SERVER_ERROR, "Internal Server Error"
+ { HTTP_INTERNAL_SERVER_ERROR, "Internal Server Error",
"Internal Server Error" },
-#if 0
+#if 0 /* not implemented */
{ HTTP_CREATED, "Created" },
{ HTTP_ACCEPTED, "Accepted" },
{ HTTP_NO_CONTENT, "No Content" },
static const char Content_length[] = "Content-length:";
-/*
- * sotring to:
- * .ext:mime/type
- * /path:user:pass
- * /path/subdir:user:pass
- * D:from
- * A:from
- * D:*
- */
-static int conf_sort(const void *p1, const void *p2)
+static int
+scan_ip (const char **ep, unsigned int *ip, unsigned char endc)
{
- const Htaccess *cl1 = *(const Htaccess **)p1;
- const Htaccess *cl2 = *(const Htaccess **)p2;
- char c1 = cl1->before_colon[0];
- char c2 = cl2->before_colon[0];
- int test;
+ const char *p = *ep;
+ int auto_mask = 8;
+ int j;
+
+ *ip = 0;
+ for (j = 0; j < 4; j++) {
+ unsigned int octet;
+
+ if ((*p < '0' || *p > '9') && (*p != '/' || j == 0) && *p != 0)
+ return -auto_mask;
+ octet = 0;
+ while (*p >= '0' && *p <= '9') {
+ octet *= 10;
+ octet += *p - '0';
+ if (octet > 255)
+ return -auto_mask;
+ p++;
+ }
+ if (*p == '.')
+ p++;
+ if (*p != '/' && *p != 0)
+ auto_mask += 8;
+ *ip = ((*ip) << 8) | octet;
+ }
+ if (*p != 0) {
+ if (*p != endc)
+ return -auto_mask;
+ p++;
+ if(*p == 0)
+ return -auto_mask;
+ }
+ *ep = p;
+ return auto_mask;
+}
-#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
- /* .ext line up before other lines for simlify algorithm */
- test = c2 == '.';
- if(c1 == '.')
- return -(!test);
- if(test)
- return test;
-#endif
+static int
+scan_ip_mask (const char *ipm, unsigned int *ip, unsigned int *mask)
+{
+ int i;
+ unsigned int msk;
+
+ i = scan_ip(&ipm, ip, '/');
+ if(i < 0)
+ return i;
+ if(*ipm) {
+ const char *p = ipm;
+
+ i = 0;
+ while (*p) {
+ if (*p < '0' || *p > '9') {
+ if (*p == '.') {
+ i = scan_ip (&ipm, mask, 0);
+ return i != 32;
+ }
+ return -1;
+ }
+ i *= 10;
+ i += *p - '0';
+ p++;
+ }
+ }
+ if (i > 32 || i < 0)
+ return -1;
+ msk = 0x80000000;
+ *mask = 0;
+ while (i > 0) {
+ *mask |= msk;
+ msk >>= 1;
+ i--;
+ }
+ return 0;
+}
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- test = c1 == '/';
- /* /path line up before A/D lines for simlify algorithm */
- if(test) {
- if(c2 != '/')
- return -test;
- /* a shortes path with user:pass must be first */
- return strlen(cl1->before_colon) - strlen(cl2->before_colon);
- } else if(c2 == '/')
- return !test;
-#endif
-
- /* D:from must move top */
- test = c2 == 'D' && cl2->after_colon[0] != 0;
- if(c1 == 'D' && cl1->after_colon[0] != 0) {
- return -(!test);
- }
- if(test)
- return test;
+#if defined(CONFIG_FEATURE_HTTPD_BASIC_AUTH) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES)
+static void free_config_lines(Htaccess **pprev)
+{
+ Htaccess *prev = *pprev;
- /* next lines - A:from */
- test = c2 == 'A' && cl2->after_colon[0] != 0;
- if(c1 == 'A' && cl1->after_colon[0] != 0) {
- return -(!test);
- }
- if(test)
- return test;
+ while( prev ) {
+ Htaccess *cur = prev;
- /* end lines - D:* */
- test = c2 == 'D' && cl2->after_colon[0] == 0;
- if(c1 == 'D' && cl1->after_colon[0] == 0) {
- return -(!test);
+ prev = cur->next;
+ free(cur);
}
-#ifdef DEBUG
- if(!test)
- bb_error_msg_and_die("sort: can`t found compares!");
-#endif
- return test;
+ *pprev = NULL;
}
-
+#endif
/* flag */
-#define FIRST_PARSE 0
-#define SUBDIR_PARSE 1
-#define SIGNALED_PARSE 2
-
+#define FIRST_PARSE 0
+#define SUBDIR_PARSE 1
+#define SIGNALED_PARSE 2
+#define FIND_FROM_HTTPD_ROOT 3
+/****************************************************************************
+ *
+ > $Function: parse_conf()
+ *
+ * $Description: parse configuration file into in-memory linked list.
+ *
+ * The first non-white character is examined to determine if the config line
+ * is one of the following:
+ * .ext:mime/type # new mime type not compiled into httpd
+ * [adAD]:from # ip address allow/deny, * for wildcard
+ * /path:user:pass # username/password
+ *
+ * Any previous IP rules are discarded.
+ * If the flag argument is not SUBDIR_PARSE then all /path and mime rules
+ * are also discarded. That is, previous settings are retained if flag is
+ * SUBDIR_PARSE.
+ *
+ * $Parameters:
+ * (const char *) path . . null for ip address checks, path for password
+ * checks.
+ * (int) flag . . . . . . the source of the parse request.
+ *
+ * $Return: (None)
+ *
+ ****************************************************************************/
static void parse_conf(const char *path, int flag)
{
-#define bc cur->before_colon[0]
-#define ac cur->after_colon[0]
FILE *f;
- Htaccess *prev;
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ Htaccess *prev, *cur;
+#elif CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
Htaccess *cur;
+#endif
+
const char *cf = config->configFile;
- char buf[80];
+ char buf[160];
char *p0 = NULL;
- int deny_all = 0; /* default A:* */
- int n = 0; /* count config lines */
+ char *c, *p;
+
+ /* free previous ip setup if present */
+ Htaccess_IP *pip = config->ip_a_d;
+
+ while( pip ) {
+ Htaccess_IP *cur_ipl = pip;
+
+ pip = cur_ipl->next;
+ free(cur_ipl);
+ }
+ config->ip_a_d = NULL;
+
+ config->flg_deny_all = 0;
+
+#if defined(CONFIG_FEATURE_HTTPD_BASIC_AUTH) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES)
+ /* retain previous auth and mime config only for subdir parse */
+ if(flag != SUBDIR_PARSE) {
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ free_config_lines(&config->auth);
+#endif
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ free_config_lines(&config->mime_a);
+#endif
+ }
+#endif
if(flag == SUBDIR_PARSE || cf == NULL) {
- cf = p0 = alloca(strlen(path) + sizeof(httpd_conf) + 2);
- if(p0 == NULL) {
+ cf = alloca(strlen(path) + sizeof(httpd_conf) + 2);
+ if(cf == NULL) {
if(flag == FIRST_PARSE)
bb_error_msg_and_die(bb_msg_memory_exhausted);
return;
}
- sprintf(p0, "%s/%s", path, httpd_conf);
+ sprintf((char *)cf, "%s/%s", path, httpd_conf);
}
while((f = fopen(cf, "r")) == NULL) {
- if(flag != FIRST_PARSE)
- return; /* subdir config not found */
- if(p0 == NULL) /* if -c option gived */
- bb_perror_msg_and_die("%s", cf);
- p0 = NULL;
- cf = httpd_conf; /* set -c ./httpd_conf */
- }
-
- prev = config->Httpd_conf_parsed;
- if(flag != SUBDIR_PARSE) {
- /* free previous setuped */
- while( prev ) {
- cur = prev;
- prev = cur->next;
- free(cur);
- }
- config->Httpd_conf_parsed = prev; /* eq NULL */
- } else {
- /* parse previous IP logic for merge */
- for(cur = prev; cur; cur = cur->next) {
- if(bc == 'D' && ac == 0)
- deny_all++;
- n++;
- /* find last for set prev->next of merging */
- if(cur != prev)
- prev = prev->next;
+ if(flag == SUBDIR_PARSE || flag == FIND_FROM_HTTPD_ROOT) {
+ /* config file not found, no changes to config */
+ return;
}
+ if(config->configFile && flag == FIRST_PARSE) /* if -c option given */
+ bb_perror_msg_and_die("%s", cf);
+ flag = FIND_FROM_HTTPD_ROOT;
+ cf = httpd_conf;
}
- /* This could stand some work */
- while ( (p0 = fgets(buf, 80, f)) != NULL) {
- char *p;
- char *colon;
-
- for(p = colon = p0; *p; p++) {
- if(*p == '#') {
- *p = 0;
- break;
- }
- if(isspace(*p)) {
- if(p != p0) {
- *p = 0;
- break;
- }
- p0++;
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ prev = config->auth;
+#endif
+ /* This could stand some work */
+ while ( (p0 = fgets(buf, sizeof(buf), f)) != NULL) {
+ c = NULL;
+ for(p = p0; *p0 != 0 && *p0 != '#'; p0++) {
+ if(!isspace(*p0)) {
+ *p++ = *p0;
+ if(*p0 == ':' && c == NULL)
+ c = p;
}
- else if(*p == ':' && colon <= p0)
- colon = p;
}
+ *p = 0;
/* test for empty or strange line */
- if (colon <= p0 || colon[1] == 0)
+ if (c == NULL || *c == 0)
continue;
- if(colon[1] == '*')
- colon[1] = 0; /* Allow all */
- if(*p0 == 'a')
- *p0 = 'A';
+ p0 = buf;
if(*p0 == 'd')
*p0 = 'D';
- if(*p0 != 'A' && *p0 != 'D'
+ if(*c == '*') {
+ if(*p0 == 'D') {
+ /* memorize deny all */
+ config->flg_deny_all++;
+ }
+ /* skip default other "word:*" config lines */
+ continue;
+ }
+
+ if(*p0 == 'a')
+ *p0 = 'A';
+ else if(*p0 != 'D' && *p0 != 'A'
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- && *p0 != '/'
+ && *p0 != '/'
#endif
#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
- && *p0 != '.'
+ && *p0 != '.'
#endif
- )
+ )
continue;
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- if(*p0 == '/' && colon[1] == 0) {
- /* skip /path:* */
- continue;
+ if(*p0 == 'A' || *p0 == 'D') {
+ /* storing current config IP line */
+ pip = calloc(1, sizeof(Htaccess_IP));
+ if(pip) {
+ if(scan_ip_mask (c, &(pip->ip), &(pip->mask))) {
+ /* syntax IP{/mask} error detected, protect all */
+ *p0 = 'D';
+ pip->mask = 0;
+ }
+ pip->allow_deny = *p0;
+ if(*p0 == 'D') {
+ /* Deny:form_IP move top */
+ pip->next = config->ip_a_d;
+ config->ip_a_d = pip;
+ } else {
+ /* add to bottom A:form_IP config line */
+ Htaccess_IP *prev_IP = config->ip_a_d;
+
+ if(prev_IP == NULL) {
+ config->ip_a_d = pip;
+ } else {
+ while(prev_IP->next)
+ prev_IP = prev_IP->next;
+ prev_IP->next = pip;
+ }
+ }
+ }
+ continue;
}
-#endif
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ if(*p0 == '/') {
+ /* make full path from httpd root / curent_path / config_line_path */
+ cf = flag == SUBDIR_PARSE ? path : "";
+ p0 = malloc(strlen(cf) + (c - buf) + 2 + strlen(c));
+ if(p0 == NULL)
+ continue;
+ c[-1] = 0;
+ sprintf(p0, "/%s%s", cf, buf);
+
+ /* another call bb_simplify_path */
+ cf = p = p0;
+
+ do {
+ if (*p == '/') {
+ if (*cf == '/') { /* skip duplicate (or initial) slash */
+ continue;
+ } else if (*cf == '.') {
+ if (cf[1] == '/' || cf[1] == 0) { /* remove extra '.' */
+ continue;
+ } else if ((cf[1] == '.') && (cf[2] == '/' || cf[2] == 0)) {
+ ++cf;
+ if (p > p0) {
+ while (*--p != '/'); /* omit previous dir */
+ }
+ continue;
+ }
+ }
+ }
+ *++p = *cf;
+ } while (*++cf);
- if(*p0 == 'A' || *p0 == 'D') {
- if(colon[1] == 0) {
- if(*p0 == 'A' || deny_all != 0)
- continue; /* skip default A:* or double D:* */
+ if ((p == p0) || (*p != '/')) { /* not a trailing slash */
+ ++p; /* so keep last character */
}
- if(deny_all != 0 && *p0 == 'A')
- continue; // if previous setted rule D:* skip all subdir A:
+ *p = 0;
+ sprintf(p0, "%s:%s", p0, c);
}
+#endif
+#if defined(CONFIG_FEATURE_HTTPD_BASIC_AUTH) || defined(CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES)
/* storing current config line */
- cur = calloc(1, sizeof(Htaccess) + (p-p0));
+ cur = calloc(1, sizeof(Htaccess) + strlen(p0));
if(cur) {
- if(*(colon-1) == '/' && (colon-1) != p0)
- colon[-1] = 0; // remove last / from /path/
- cur->after_colon = strcpy(cur->before_colon, p0);
- cur->after_colon += (colon-p0);
- *cur->after_colon++ = 0;
-
+ cf = strcpy(cur->before_colon, p0);
+ c = strchr(cf, ':');
+ *c++ = 0;
+ cur->after_colon = c;
+#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ if(*cf == '.') {
+ /* config .mime line move top for overwrite previous */
+ cur->next = config->mime_a;
+ config->mime_a = cur;
+ continue;
+ }
+#endif
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ free(p0);
if(prev == NULL) {
/* first line */
- config->Httpd_conf_parsed = prev = cur;
+ config->auth = prev = cur;
} else {
- prev->next = cur;
- prev = cur;
+ /* sort path, if current lenght eq or bigger then move up */
+ Htaccess *prev_hti = config->auth;
+ int l = strlen(cf);
+ Htaccess *hti;
+
+ for(hti = prev_hti; hti; hti = hti->next) {
+ if(l >= strlen(hti->before_colon)) {
+ /* insert before hti */
+ cur->next = hti;
+ if(prev_hti != hti) {
+ prev_hti->next = cur;
+ } else {
+ /* insert as top */
+ config->auth = cur;
+ }
+ break;
+ }
+ if(prev_hti != hti)
+ prev_hti = prev_hti->next;
+ }
+ if(!hti) { /* not inserted, add to bottom */
+ prev->next = cur;
+ prev = cur;
+ }
}
- n++;
+#endif
}
+#endif
}
fclose(f);
-
- if(n > 1) {
- /* sorting conf lines */
- Htaccess ** pcur; /* array for qsort */
-
- prev = config->Httpd_conf_parsed;
- pcur = alloca((n + 1) * sizeof(Htaccess *));
- if(pcur == NULL) {
- if(flag == FIRST_PARSE)
- bb_error_msg_and_die(bb_msg_memory_exhausted);
- return;
- }
- n = 0;
- for(cur = prev; cur; cur = cur->next)
- pcur[n++] = cur;
- pcur[n] = NULL;
-
- qsort(pcur, n, sizeof(Htaccess *), conf_sort);
-
- /* storing sorted config */
- config->Httpd_conf_parsed = *pcur;
- for(cur = *pcur; cur; cur = cur->next) {
-#ifdef DEBUG
- bb_error_msg("%s: %s:%s", cf, cur->before_colon, cur->after_colon);
-#endif
- cur->next = *++pcur;
- }
- }
}
#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
}
#endif /* CONFIG_FEATURE_HTTPD_ENCODE_URL_STR */
-#ifdef CONFIG_FEATURE_HTTPD_DECODE_URL_STR
/****************************************************************************
*
> $Function: decodeString()
*
* $Parameters:
* (char *) string . . . The first string to decode.
+ * (int) flag . . . 1 if require decode '+' as ' ' for CGI
*
* $Return: (char *) . . . . A pointer to the decoded string (same as input).
*
* $Errors: None
*
****************************************************************************/
-static char *decodeString(char *string)
+static char *decodeString(char *orig, int flag_plus_to_space)
{
/* note that decoded string is always shorter than original */
- char *orig = string;
+ char *string = orig;
char *ptr = string;
+
while (*ptr)
{
- if (*ptr == '+') { *string++ = ' '; ptr++; }
+ if (*ptr == '+' && flag_plus_to_space) { *string++ = ' '; ptr++; }
else if (*ptr != '%') *string++ = *ptr++;
else {
unsigned int value;
*string = '\0';
return orig;
}
-#endif /* CONFIG_FEATURE_HTTPD_DECODE_URL_STR */
#ifdef CONFIG_FEATURE_HTTPD_CGI
*
> $Function: addEnv()
*
- * $Description: Add an enviornment variable setting to the global list.
+ * $Description: Add an environment variable setting to the global list.
* A NAME=VALUE string is allocated, filled, and added to the list of
* environment settings passed to the cgi execution script.
*
static void addEnv(const char *name_before_underline,
const char *name_after_underline, const char *value)
{
- char *s;
+ char *s = NULL;
+ const char *underline;
- if (config->envCount >= ENVSIZE)
- return;
if (!value)
value = "";
- s = malloc(strlen(name_before_underline) + strlen(name_after_underline) +
- strlen(value) + 3);
- if (s) {
- const char *underline = *name_after_underline ? "_" : "";
-
- sprintf(s,"%s%s%s=%s", name_before_underline, underline,
+ underline = *name_after_underline ? "_" : "";
+ asprintf(&s, "%s%s%s=%s", name_before_underline, underline,
name_after_underline, value);
- config->envp[config->envCount++] = s;
- config->envp[config->envCount] = 0;
+ if(s) {
+ putenv(s);
}
}
+#if defined(CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV) || !defined(CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY)
/* set environs SERVER_PORT and REMOTE_PORT */
static void addEnvPort(const char *port_name)
{
sprintf(buf, "%u", config->port);
addEnv(port_name, "PORT", buf);
}
+#endif
#endif /* CONFIG_FEATURE_HTTPD_CGI */
-#ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
-/****************************************************************************
- *
- > $Function: addEnvCgi
- *
- * $Description: Create environment variables given a URL encoded arg list.
- * For each variable setting the URL encoded arg list, create a corresponding
- * environment variable. URL encoded arguments have the form
- * name1=value1&name2=value2&name3=&ignores
- * from this example, name3 set empty value, tail without '=' skiping
- *
- * $Parameters:
- * (char *) pargs . . . . A pointer to the URL encoded arguments.
- *
- * $Return: None
- *
- * $Errors: None
- *
- ****************************************************************************/
-static void addEnvCgi(const char *pargs)
-{
- char *args;
- char *memargs;
- if (pargs==0) return;
-
- /* args are a list of name=value&name2=value2 sequences */
- memargs = args = strdup(pargs);
- while (args && *args) {
- const char *name = args;
- char *value = strchr(args, '=');
-
- if (!value) /* &XXX without '=' */
- break;
- *value++ = 0;
- args = strchr(value, '&');
- if (args)
- *args++ = 0;
- addEnv("CGI", name, decodeString(value));
- }
- free(memargs);
-}
-#endif /* CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV */
-
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
/****************************************************************************
****************************************************************************/
static void decodeBase64(char *Data)
{
- int i = 0;
- static const char base64ToBin[] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
const unsigned char *in = Data;
// The decoded size will be at most 3/4 the size of the encoded
unsigned long ch = 0;
+ int i = 0;
while (*in) {
- unsigned char conv = 0;
-
- while (*in) {
- const char *p64;
-
- p64 = strchr(base64ToBin, *in++);
- if(p64 == NULL)
+ int t = *in++;
+
+ if(t >= '0' && t <= '9')
+ t = t - '0' + 52;
+ else if(t >= 'A' && t <= 'Z')
+ t = t - 'A';
+ else if(t >= 'a' && t <= 'z')
+ t = t - 'a' + 26;
+ else if(t == '+')
+ t = 62;
+ else if(t == '/')
+ t = 63;
+ else if(t == '=')
+ t = 0;
+ else
continue;
- conv = (p64 - base64ToBin);
- break;
- }
- ch = (ch << 6) | conv;
+
+ ch = (ch << 6) | t;
i++;
- if (i== 4) {
- *Data++ = (char) (ch >> 16);
- *Data++ = (char) (ch >> 8);
- *Data++ = (char) ch;
- i = 0;
+ if (i == 4) {
+ *Data++ = (char) (ch >> 16);
+ *Data++ = (char) (ch >> 8);
+ *Data++ = (char) ch;
+ i = 0;
}
}
*Data = 0;
#endif
if (config->ContentLength != -1) { /* file */
strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&config->last_mod));
- len += sprintf(buf+len, "Last-Modified: %s\r\n%s %ld\r\n",
+ len += sprintf(buf+len, "Last-Modified: %s\r\n%s " cont_l_fmt "\r\n",
timeStr, Content_length, config->ContentLength);
}
strcat(buf, "\r\n");
*
* Characters are read one at a time until an eol sequence is found.
*
- * $Parameters:
- * (char *) buf . . Where to place the read result.
- *
* $Return: (int) . . . . number of characters read. -1 if error.
*
****************************************************************************/
-static int getLine(char *buf)
+static int getLine(void)
{
int count = 0;
+ char *buf = config->buf;
while (read(a_c_r, buf + count, 1) == 1) {
if (buf[count] == '\r') continue;
* data in addition to setting the QUERY_STRING variable (for GETs or POSTs).
*
* $Parameters:
- * (const char *) url . . . The requested URL (with leading /).
- * (const char *urlArgs). . Any URL arguments.
- * (const char *body) . . . POST body contents.
- * (int bodyLen) . . . . . Length of the post body.
- * (const char *cookie) . . For set HTTP_COOKIE.
+ * (const char *) url . . . . . . The requested URL (with leading /).
+ * (const char *urlArgs). . . . . Any URL arguments.
+ * (int bodyLen) . . . . . . . . Length of the post body.
+ * (const char *cookie) . . . . . For set HTTP_COOKIE.
+ * (const char *content_type) . . For set CONTENT_TYPE.
*
* $Return: (char *) . . . . A pointer to the decoded string (same as input).
****************************************************************************/
static int sendCgi(const char *url,
const char *request, const char *urlArgs,
- const char *body, int bodyLen, const char *cookie)
+ int bodyLen, const char *cookie,
+ const char *content_type)
{
int fromCgi[2]; /* pipe for reading data from CGI */
int toCgi[2]; /* pipe for sending data to CGI */
addEnv("SERVER", "SOFTWARE", httpdVersion);
addEnv("SERVER", "PROTOCOL", "HTTP/1.0");
addEnv("GATEWAY_INTERFACE", "", "CGI/1.1");
+ addEnv("REMOTE", "ADDR", config->rmt_ip_str);
#ifdef CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
- addEnv("REMOTE", "ADDR", config->rmt_ip);
addEnvPort("REMOTE");
-#else
- addEnv("REMOTE_ADDR", "", config->rmt_ip);
#endif
if(bodyLen) {
char sbl[32];
sprintf(sbl, "%d", bodyLen);
- addEnv("CONTENT_LENGTH", "", sbl);
+ addEnv("CONTENT", "LENGTH", sbl);
}
if(cookie)
- addEnv("HTTP_COOKIE", "", cookie);
-
-#ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
- if (request != request_GET) {
- addEnvCgi(body);
- } else {
- addEnvCgi(urlArgs);
+ addEnv("HTTP", "COOKIE", cookie);
+ if(content_type)
+ addEnv("CONTENT", "TYPE", content_type);
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ if(config->remoteuser) {
+ addEnv("REMOTE", "USER", config->remoteuser);
+ addEnv("AUTH_TYPE", "", "Basic");
}
#endif
+ if(config->referer)
+ addEnv("HTTP", "REFERER", config->referer);
/* set execve argp[0] without path */
argp[0] = strrchr( purl, '/' ) + 1;
if(script) {
*script = '\0';
if(chdir(realpath_buff) == 0) {
- *script = '/';
- // now run the program. If it fails, use _exit() so no destructors
- // get called and make a mess.
- execve(realpath_buff, argp, config->envp);
+ *script = '/';
+ // now run the program. If it fails,
+ // use _exit() so no destructors
+ // get called and make a mess.
+ execv(realpath_buff, argp);
}
}
}
if (pid) {
/* parent process */
int status;
+ size_t post_readed_size = 0, post_readed_idx = 0;
inFd = fromCgi[0];
outFd = toCgi[1];
close(fromCgi[1]);
close(toCgi[0]);
- if (body) bb_full_write(outFd, body, bodyLen);
- close(outFd);
+ signal(SIGPIPE, SIG_IGN);
while (1) {
- struct timeval timeout;
fd_set readSet;
- char buf[160];
+ fd_set writeSet;
+ char wbuf[128];
int nfound;
int count;
FD_ZERO(&readSet);
+ FD_ZERO(&writeSet);
FD_SET(inFd, &readSet);
-
+ if(bodyLen > 0 || post_readed_size > 0) {
+ FD_SET(outFd, &writeSet);
+ nfound = outFd > inFd ? outFd : inFd;
+ if(post_readed_size == 0) {
+ FD_SET(a_c_r, &readSet);
+ if(nfound < a_c_r)
+ nfound = a_c_r;
+ }
/* Now wait on the set of sockets! */
- timeout.tv_sec = 0;
- timeout.tv_usec = 10000;
- nfound = select(inFd + 1, &readSet, 0, 0, &timeout);
+ nfound = select(nfound + 1, &readSet, &writeSet, 0, NULL);
+ } else {
+ if(!bodyLen) {
+ close(outFd);
+ bodyLen = -1;
+ }
+ nfound = select(inFd + 1, &readSet, 0, 0, NULL);
+ }
if (nfound <= 0) {
if (waitpid(pid, &status, WNOHANG) > 0) {
bb_error_msg("piped has exited with signal=%d", WTERMSIG(status));
}
#endif
- pid = -1;
break;
}
+ } else if(post_readed_size > 0 && FD_ISSET(outFd, &writeSet)) {
+ count = bb_full_write(outFd, wbuf + post_readed_idx, post_readed_size);
+ if(count > 0) {
+ post_readed_size -= count;
+ post_readed_idx += count;
+ if(post_readed_size == 0)
+ post_readed_idx = 0;
+ }
+ } else if(bodyLen > 0 && post_readed_size == 0 && FD_ISSET(a_c_r, &readSet)) {
+ count = bodyLen > sizeof(wbuf) ? sizeof(wbuf) : bodyLen;
+ count = bb_full_read(a_c_r, wbuf, count);
+ if(count > 0) {
+ post_readed_size += count;
+ bodyLen -= count;
} else {
+ bodyLen = 0; /* closed */
+ }
+ } else if(FD_ISSET(inFd, &readSet)) {
int s = a_c_w;
+ char *rbuf = config->buf;
// There is something to read
- count = bb_full_read(inFd, buf, sizeof(buf)-1);
- // If a read returns 0 at this point then some type of error has
- // occurred. Bail now.
- if (count == 0) break;
+ count = bb_full_read(inFd, rbuf, MAX_MEMORY_BUFF-1);
+ if (count == 0)
+ break; /* closed */
if (count > 0) {
if (firstLine) {
+ rbuf[count] = 0;
/* check to see if the user script added headers */
- if (strncmp(buf, "HTTP/1.0 200 OK\n", 4) != 0) {
+ if(strncmp(rbuf, "HTTP/1.0 200 OK\n", 4) != 0) {
bb_full_write(s, "HTTP/1.0 200 OK\n", 16);
}
- if (strstr(buf, "ontent-") == 0) {
+ if (strstr(rbuf, "ontent-") == 0) {
bb_full_write(s, "Content-type: text/plain\n\n", 26);
}
- firstLine=0;
+ firstLine = 0;
}
- bb_full_write(s, buf, count);
+ if (bb_full_write(s, rbuf, count) != count)
+ break;
+
#ifdef DEBUG
if (config->debugHttpd)
fprintf(stderr, "cgi read %d bytes\n", count);
*
* $Parameter:
* (const char *) url . . The URL requested.
- * (char *) buf . . . . . The stack buffer.
*
* $Return: (int) . . . . . . Always 0.
*
****************************************************************************/
-static int sendFile(const char *url, char *buf)
+static int sendFile(const char *url)
{
char * suffix;
int f;
if (suffix) {
Htaccess * cur;
- for (cur = config->Httpd_conf_parsed; cur; cur = cur->next) {
+ for (cur = config->mime_a; cur; cur = cur->next) {
if(strcmp(cur->before_colon, suffix) == 0) {
config->found_mime_type = cur->after_colon;
break;
f = open(url, O_RDONLY);
if (f >= 0) {
int count;
+ char *buf = config->buf;
sendHeaders(HTTP_OK);
while ((count = bb_full_read(f, buf, MAX_MEMORY_BUFF)) > 0) {
- bb_full_write(a_c_w, buf, count);
+ if (bb_full_write(a_c_w, buf, count) != count)
+ break;
}
close(f);
} else {
return 0;
}
+static int checkPermIP(void)
+{
+ Htaccess_IP * cur;
+
+ /* This could stand some work */
+ for (cur = config->ip_a_d; cur; cur = cur->next) {
+#ifdef DEBUG
+ if (config->debugHttpd) {
+ fprintf(stderr, "checkPermIP: '%s' ? ", config->rmt_ip_str);
+ fprintf(stderr, "'%u.%u.%u.%u/%u.%u.%u.%u'\n",
+ (unsigned char)(cur->ip >> 24),
+ (unsigned char)(cur->ip >> 16),
+ (unsigned char)(cur->ip >> 8),
+ cur->ip & 0xff,
+ (unsigned char)(cur->mask >> 24),
+ (unsigned char)(cur->mask >> 16),
+ (unsigned char)(cur->mask >> 8),
+ cur->mask & 0xff);
+ }
+#endif
+ if((config->rmt_ip & cur->mask) == cur->ip)
+ return cur->allow_deny == 'A'; /* Allow/Deny */
+ }
+
+ /* if unconfigured, return 1 - access from all */
+ return !config->flg_deny_all;
+}
+
/****************************************************************************
*
> $Function: checkPerm()
*
- * $Description: Check the permission file for access.
+ * $Description: Check the permission file for access password protected.
*
* If config file isn't present, everything is allowed.
* Entries are of the form you can see example from header source
*
* $Parameters:
- * (const char *) path . . . . The file path or NULL for ip addresses.
+ * (const char *) path . . . . The file path.
* (const char *) request . . . User information to validate.
*
* $Return: (int) . . . . . . . . . 1 if request OK, 0 otherwise.
*
****************************************************************************/
-
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
static int checkPerm(const char *path, const char *request)
{
Htaccess * cur;
const char *p;
+ const char *p0;
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- int ipaddr = path == NULL;
const char *prev = NULL;
-#else
-# define ipaddr 1
-#endif
/* This could stand some work */
- for (cur = config->Httpd_conf_parsed; cur; cur = cur->next) {
- const char *p0 = cur->before_colon;
-
- if(*p0 == 'A' || *p0 == 'D') {
- if(!ipaddr)
- continue;
- } else {
- if(ipaddr)
- continue;
-#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
- if(*p0 == '.')
- continue;
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- if(prev != NULL && strcmp(prev, p0) != 0)
- continue; /* find next identical */
-#endif
- }
-
+ for (cur = config->auth; cur; cur = cur->next) {
+ p0 = cur->before_colon;
+ if(prev != NULL && strcmp(prev, p0) != 0)
+ continue; /* find next identical */
p = cur->after_colon;
#ifdef DEBUG
if (config->debugHttpd)
- fprintf(stderr,"checkPerm: '%s' ? '%s'\n",
- (ipaddr ? p : p0), request);
-#endif
- if(ipaddr) {
- if(strncmp(p, request, strlen(p)) != 0)
- continue;
- return *p0 == 'A'; /* Allow/Deny */
+ fprintf(stderr,"checkPerm: '%s' ? '%s'\n", p0, request);
+#endif
+ {
+ int l = strlen(p0);
+
+ if(strncmp(p0, path, l) == 0 &&
+ (l == 1 || path[l] == '/' || path[l] == 0)) {
+ char *u;
+ /* path match found. Check request */
+ /* for check next /path:user:password */
+ prev = p0;
+ u = strchr(request, ':');
+ if(u == NULL) {
+ /* bad request, ':' required */
+ break;
+ }
- }
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- else {
- int l = strlen(p0);
-
- if(strncmp(p0, path, l) == 0 &&
- (l == 1 || path[l] == '/' || path[l] == 0)) {
- /* path match found. Check request */
- if (strcmp(p, request) == 0)
- return 1; /* Ok */
- /* unauthorized, but check next /path:user:password */
- prev = p0;
+#ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
+ {
+ char *cipher;
+ char *pp;
+
+ if(strncmp(p, request, u-request) != 0) {
+ /* user uncompared */
+ continue;
+ }
+ pp = strchr(p, ':');
+ if(pp && pp[1] == '$' && pp[2] == '1' &&
+ pp[3] == '$' && pp[4]) {
+ pp++;
+ cipher = pw_encrypt(u+1, pp);
+ if (strcmp(cipher, pp) == 0)
+ goto set_remoteuser_var; /* Ok */
+ /* unauthorized */
+ continue;
+ }
}
- }
#endif
+ if (strcmp(p, request) == 0) {
+#ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
+set_remoteuser_var:
+#endif
+ config->remoteuser = strdup(request);
+ if(config->remoteuser)
+ config->remoteuser[(u - request)] = 0;
+ return 1; /* Ok */
+ }
+ /* unauthorized */
+ }
+ }
} /* for */
-#ifndef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- /* if uncofigured, return 1 - access from all */
- return 1;
-#else
return prev == NULL;
-#endif
}
+#endif /* CONFIG_FEATURE_HTTPD_BASIC_AUTH */
+
/****************************************************************************
*
char *purl;
int blank = -1;
char *urlArgs;
+ char *test;
+ struct stat sb;
+ int ip_allowed;
#ifdef CONFIG_FEATURE_HTTPD_CGI
const char *prequest = request_GET;
- char *body = 0;
long length=0;
char *cookie = 0;
+ char *content_type = 0;
+#endif
+#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+ fd_set s_fd;
+ struct timeval tv;
+ int retval;
#endif
- char *test;
- struct stat sb;
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
int credentials = -1; /* if not requred this is Ok */
do {
int count;
- if (getLine(buf) <= 0)
+ if (getLine() <= 0)
break; /* closed */
purl = strpbrk(buf, " \t");
*purl = ' ';
count = sscanf(purl, " %[^ ] HTTP/%d.%*d", buf, &blank);
+ decodeString(buf, 0);
if (count < 1 || buf[0] != '/') {
/* Garbled request/URL */
goto BAD_REQUEST;
strcpy(url, buf);
/* extract url args if present */
urlArgs = strchr(url, '?');
- if (urlArgs) {
- *urlArgs++ = 0; /* next code can set '/' to this pointer,
- but CGI script can`t be a directory */
- }
+ if (urlArgs)
+ *urlArgs++ = 0;
/* algorithm stolen from libbb bb_simplify_path(),
- but don`t strdup and reducing trailing slash */
+ but don`t strdup and reducing trailing slash and protect out root */
purl = test = url;
do {
#endif
test = url;
- while((test = strchr( test + 1, '/' )) != NULL) {
+ ip_allowed = checkPermIP();
+ while(ip_allowed && (test = strchr( test + 1, '/' )) != NULL) {
/* have path1/path2 */
*test = '\0';
if( is_directory(url + 1, 1, &sb) ) {
/* may be having subdir config */
parse_conf(url + 1, SUBDIR_PARSE);
+ ip_allowed = checkPermIP();
}
*test = '/';
}
// read until blank line for HTTP version specified, else parse immediate
- while (blank >= 0 && (count = getLine(buf)) > 0) {
+ while (blank >= 0 && (count = getLine()) > 0) {
#ifdef DEBUG
if (config->debugHttpd) fprintf(stderr, "Header: '%s'\n", buf);
for(test = buf + 7; isspace(*test); test++)
;
cookie = strdup(test);
+ } else if ((strncasecmp(buf, "Content-Type:", 13) == 0)) {
+ for(test = buf + 13; isspace(*test); test++)
+ ;
+ content_type = strdup(test);
+ } else if ((strncasecmp(buf, "Referer:", 8) == 0)) {
+ for(test = buf + 8; isspace(*test); test++)
+ ;
+ config->referer = strdup(test);
}
#endif
} /* while extra header reading */
- if (strcmp(strrchr(url, '/') + 1, httpd_conf) == 0 ||
- checkPerm(NULL, config->rmt_ip) == 0) {
+ if (strcmp(strrchr(url, '/') + 1, httpd_conf) == 0 || ip_allowed == 0) {
/* protect listing [/path]/httpd_conf or IP deny */
#ifdef CONFIG_FEATURE_HTTPD_CGI
FORBIDDEN: /* protect listing /cgi-bin */
#ifdef CONFIG_FEATURE_HTTPD_CGI
/* if strange Content-Length */
- if (length < 0 || length > MAX_POST_SIZE)
+ if (length < 0)
break;
- if (length > 0) {
- body = malloc(length + 1);
- if (body) {
- length = bb_full_read(a_c_r, body, length);
- if(length < 0) // closed
- length = 0;
- body[length] = 0; // always null terminate for safety
- }
- }
-
if (strncmp(test, "cgi-bin", 7) == 0) {
- if(test[7] == 0 || (test[7] == '/' && test[8] == 0))
- goto FORBIDDEN; // protect listing cgi-bin
- sendCgi(url, prequest, urlArgs, body, length, cookie);
+ if(test[7] == '/' && test[8] == 0)
+ goto FORBIDDEN; // protect listing cgi-bin/
+ sendCgi(url, prequest, urlArgs, length, cookie, content_type);
} else {
if (prequest != request_GET)
sendHeaders(HTTP_NOT_IMPLEMENTED);
config->ContentLength = sb.st_size;
config->last_mod = sb.st_mtime;
}
- sendFile(test, buf);
+ sendFile(test);
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
/* unset if non inetd looped */
config->ContentLength = -1;
if (config->debugHttpd) fprintf(stderr, "closing socket\n");
# endif
# ifdef CONFIG_FEATURE_HTTPD_CGI
- free(body);
free(cookie);
+ free(content_type);
+ free(config->referer);
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ free(config->remoteuser);
+#endif
# endif
shutdown(a_c_w, SHUT_WR);
+
+ /* Properly wait for remote to closed */
+ FD_ZERO (&s_fd) ;
+ FD_SET (a_c_w, &s_fd) ;
+
+ do {
+ tv.tv_sec = 2 ;
+ tv.tv_usec = 0 ;
+ retval = select (a_c_w + 1, &s_fd, NULL, NULL, &tv);
+ } while (retval > 0 && (read (a_c_w, buf, sizeof (config->buf)) > 0));
+
shutdown(a_c_r, SHUT_RD);
close(config->accepted_socket);
#endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
static int miniHttpd(int server)
{
fd_set readfd, portfd;
- int nfound;
FD_ZERO(&portfd);
FD_SET(server, &portfd);
while (1) {
readfd = portfd;
- /* Now wait INDEFINATELY on the set of sockets! */
- nfound = select(server + 1, &readfd, 0, 0, 0);
-
- switch (nfound) {
- case 0:
- /* select timeout error! */
- break ;
- case -1:
- /* select error */
- break;
- default:
+ /* Now wait INDEFINITELY on the set of sockets! */
+ if (select(server + 1, &readfd, 0, 0, 0) > 0) {
if (FD_ISSET(server, &readfd)) {
int on;
struct sockaddr_in fromAddr;
- unsigned int addr;
socklen_t fromAddrLen = sizeof(fromAddr);
int s = accept(server,
(struct sockaddr *)&fromAddr, &fromAddrLen);
if (s < 0) {
- continue;
+ continue;
}
config->accepted_socket = s;
- addr = ntohl(fromAddr.sin_addr.s_addr);
- sprintf(config->rmt_ip, "%u.%u.%u.%u",
- (unsigned char)(addr >> 24),
- (unsigned char)(addr >> 16),
- (unsigned char)(addr >> 8),
- addr & 0xff);
+ config->rmt_ip = ntohl(fromAddr.sin_addr.s_addr);
+#if defined(CONFIG_FEATURE_HTTPD_CGI) || defined(DEBUG)
+ sprintf(config->rmt_ip_str, "%u.%u.%u.%u",
+ (unsigned char)(config->rmt_ip >> 24),
+ (unsigned char)(config->rmt_ip >> 16),
+ (unsigned char)(config->rmt_ip >> 8),
+ config->rmt_ip & 0xff);
config->port = ntohs(fromAddr.sin_port);
#ifdef DEBUG
if (config->debugHttpd) {
- bb_error_msg("connection from IP=%s, port %u\n",
- config->rmt_ip, config->port);
+ bb_error_msg("connection from IP=%s, port %u\n",
+ config->rmt_ip_str, config->port);
}
#endif
+#endif /* CONFIG_FEATURE_HTTPD_CGI */
+
/* set the KEEPALIVE option to cull dead connections */
on = 1;
setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, (void *)&on, sizeof (on));
if (config->debugHttpd || fork() == 0) {
- /* This is the spawned thread */
- handleIncoming();
- if(!config->debugHttpd)
+ /* This is the spawned thread */
+#ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
+ /* protect reload config, may be confuse checking */
+ signal(SIGHUP, SIG_IGN);
+#endif
+ handleIncoming();
+ if(!config->debugHttpd)
exit(0);
}
close(s);
{
struct sockaddr_in fromAddrLen;
socklen_t sinlen = sizeof (struct sockaddr_in);
- unsigned int addr;
getpeername (0, (struct sockaddr *)&fromAddrLen, &sinlen);
- addr = ntohl(fromAddrLen.sin_addr.s_addr);
- sprintf(config->rmt_ip, "%u.%u.%u.%u",
- (unsigned char)(addr >> 24),
- (unsigned char)(addr >> 16),
- (unsigned char)(addr >> 8),
- addr & 0xff);
+ config->rmt_ip = ntohl(fromAddrLen.sin_addr.s_addr);
+#if defined(CONFIG_FEATURE_HTTPD_CGI) || defined(DEBUG)
+ sprintf(config->rmt_ip_str, "%u.%u.%u.%u",
+ (unsigned char)(config->rmt_ip >> 24),
+ (unsigned char)(config->rmt_ip >> 16),
+ (unsigned char)(config->rmt_ip >> 8),
+ config->rmt_ip & 0xff);
+#endif
config->port = ntohs(fromAddrLen.sin_port);
handleIncoming();
return 0;
/* set and reset */
struct sigaction sa;
+ parse_conf(default_path_httpd_conf,
+ sig == SIGHUP ? SIGNALED_PARSE : FIRST_PARSE);
sa.sa_handler = sighup_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sigaction(SIGHUP, &sa, NULL);
- parse_conf(default_patch_httpd_conf,
- sig == SIGHUP ? SIGNALED_PARSE : FIRST_PARSE);
}
#endif
+
+static const char httpd_opts[]="c:d:h:"
+#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
+ "e:"
+#define OPT_INC_1 1
+#else
+#define OPT_INC_1 0
+#endif
+#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+ "r:"
+# ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
+ "m:"
+# define OPT_INC_2 2
+# else
+# define OPT_INC_2 1
+#endif
+#else
+#define OPT_INC_2 0
+#endif
+#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+ "p:v"
+#ifdef CONFIG_FEATURE_HTTPD_SETUID
+ "u:"
+#endif
+#endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
+ ;
+
+#define OPT_CONFIG_FILE (1<<0)
+#define OPT_DECODE_URL (1<<1)
+#define OPT_HOME_HTTPD (1<<2)
+#define OPT_ENCODE_URL (1<<(2+OPT_INC_1))
+#define OPT_REALM (1<<(3+OPT_INC_1))
+#define OPT_MD5 (1<<(4+OPT_INC_1))
+#define OPT_PORT (1<<(3+OPT_INC_1+OPT_INC_2))
+#define OPT_DEBUG (1<<(4+OPT_INC_1+OPT_INC_2))
+#define OPT_SETUID (1<<(5+OPT_INC_1+OPT_INC_2))
+
+
#ifdef HTTPD_STANDALONE
int main(int argc, char *argv[])
#else
int httpd_main(int argc, char *argv[])
#endif
{
+ unsigned long opt;
const char *home_httpd = home;
+ char *url_for_decode;
+#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
+ const char *url_for_encode;
+#endif
+#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+ const char *s_port;
+#endif
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
int server;
#endif
#ifdef CONFIG_FEATURE_HTTPD_SETUID
+ const char *s_uid;
long uid = -1;
#endif
+#ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
+ const char *pass;
+#endif
+
config = xcalloc(1, sizeof(*config));
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
config->realm = "Web Server Authentication";
config->ContentLength = -1;
- /* check if user supplied a port number */
- for (;;) {
- int c = getopt( argc, argv, "c:h:"
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- "p:v"
-#endif
+ opt = bb_getopt_ulflags(argc, argv, httpd_opts,
+ &(config->configFile), &url_for_decode, &home_httpd
#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
- "e:"
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_DECODE_URL_STR
- "d:"
+ , &url_for_encode
#endif
#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- "r:"
+ , &(config->realm)
+# ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
+ , &pass
+# endif
#endif
+#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+ , &s_port
#ifdef CONFIG_FEATURE_HTTPD_SETUID
- "u:"
+ , &s_uid
#endif
- );
- if (c == EOF) break;
- switch (c) {
- case 'c':
- config->configFile = optarg;
- break;
- case 'h':
- home_httpd = optarg;
- break;
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- case 'v':
- config->debugHttpd = 1;
- break;
- case 'p':
- config->port = atoi(optarg);
- if(config->port <= 0 || config->port > 0xffff)
- bb_error_msg_and_die("invalid %s for -p", optarg);
- break;
#endif
-#ifdef CONFIG_FEATURE_HTTPD_DECODE_URL_STR
- case 'd':
- printf("%s", decodeString(optarg));
+ );
+
+ if(opt & OPT_DECODE_URL) {
+ printf("%s", decodeString(url_for_decode, 1));
return 0;
-#endif
+ }
#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
- case 'e':
- printf("%s", encodeString(optarg));
+ if(opt & OPT_ENCODE_URL) {
+ printf("%s", encodeString(url_for_encode));
return 0;
+ }
#endif
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- case 'r':
- config->realm = optarg;
- break;
+#ifdef CONFIG_FEATURE_HTTPD_AUTH_MD5
+ if(opt & OPT_MD5) {
+ printf("%s\n", pw_encrypt(pass, "$1$"));
+ return 0;
+ }
#endif
+#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+ if(opt & OPT_PORT)
+ config->port = bb_xgetlarg(s_port, 10, 1, 0xffff);
+ config->debugHttpd = opt & OPT_DEBUG;
#ifdef CONFIG_FEATURE_HTTPD_SETUID
- case 'u':
- {
+ if(opt & OPT_SETUID) {
char *e;
- uid = strtol(optarg, &e, 0);
+ uid = strtol(s_uid, &e, 0);
if(*e != '\0') {
/* not integer */
- uid = my_getpwnam(optarg);
+ uid = my_getpwnam(s_uid);
}
}
- break;
#endif
- default:
- bb_error_msg("%s", httpdVersion);
- bb_show_usage();
- }
- }
+#endif
if(chdir(home_httpd)) {
bb_perror_msg_and_die("can`t chdir to %s", home_httpd);
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
server = openServer();
# ifdef CONFIG_FEATURE_HTTPD_SETUID
- /* drop privilegies */
+ /* drop privileges */
if(uid > 0)
setuid(uid);
# endif
-# ifdef CONFIG_FEATURE_HTTPD_CGI
- addEnvPort("SERVER");
+#endif
+
+#ifdef CONFIG_FEATURE_HTTPD_CGI
+ {
+ char *p = getenv("PATH");
+ if(p) {
+ p = bb_xstrdup(p);
+ }
+ clearenv();
+ if(p)
+ setenv("PATH", p, 1);
+# ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+ addEnvPort("SERVER");
# endif
+ }
#endif
#ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
sighup_handler(0);
#else
- parse_conf(default_patch_httpd_conf, FIRST_PARSE);
+ parse_conf(default_path_httpd_conf, FIRST_PARSE);
#endif
#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
projects / oweals / busybox.git / blobdiff